M2 NVME SSD to PCIe 40 Adapter Card 64Gbps M-Key PCIe40 X1 X4 Adapter for Desktop PC PCI-E GEN4 Full Speed M.2 NVME to PCI Express 4.0 x4 Adapter Card, 64Gbps SSD Adapter Support 2280 2260 2242 2230 Converter to Desktop PCI Express Compatible with PCI-E X1 X4 X8 X16 NoteThat the SATA NGFF protocol is not supported Windows 7 cannot recognize SSDs for the NVMe protocol, please note this! The motherboard BIOS installed on Windows 7 requires NVMe drivers to be installed in order to function properly, as there is no option for PCI-E hard disk startup in the BIOS boot entry of the machine, which is not a problem with the adapter card. Please Notice: 1. The adapter has not any IC chip, it can not change speed , it is convert the connect port from M.2 NVME_x000D_ to PCIE X1 or X4. The speed depends on the speed of your main board and SSD. _x000D_ 2. Different main board, and different SSD ,will lead the difference of speed in the test. The speed of X1 X4 X16 are also different . _x000D_ _x000D_ 64Gbps is the theoretical speed , for example, if your main board is PCIE3.0 , hard disk 4.0, the speed fail to reach 64Gbps_x000D_ 3. When main board reach PCIE4.0, hard disk reach 4.0, the speed maybe close to 64Gbps_x000D_ _x000D_ 4. Reminder: Test data may vary due to different environments and scenarios, and specific results are subject to actual conditions. With this M.2 NVMe SSD PCI-E 4.0 X1/X4 Adapter, you could add a NVME SSD on your motherboard without M.2 slot. With the channel of PCI-E 4.0 X4, the speed will be enhanced up to 64 Gbps, 5000+ MB/s random Read and 4500+ MB/s Write (Max), improved computer performance, backward compatible with PCIe 1.0 2.0 3.0 Multi-layer PCBA, Multi-layer protection: Overcurrent protectionOvervoltage protectionShort circuit protectionEMI (Electromagnetic Interference) protection, Heatsink layer for overheat protection . Maximum protection of M.2 NVMe SSD from electrical signal interference. No driver required for Win10, plug and play, supports NVMe SSD, such as Samsung 970 EVO/950Pro/960EVO/XP941/PM951/PM961/SM951/SM961, Intel SSD6/7 Plextor M6e Series, Kingston HyperX Predator M.2 SSD and so on. _x000D_